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xStack
The fields that can be configured are described below:
Parameter
Version
State
Query Interval (1-31744)
Max Response Time (1-
25)
Robustness Variable (1-
7)
Last Member Query
Interval (1-25)
Click the <<Back button to return to the previous window.
Click the Apply button to accept the changes made.
IGMP Check Subscriber Source Network Settings
This window is used to configure the flag that determines whether or not to check the subscriber source IP when an
IGMP report or leave message is received. When this option is enabled on an interface, any IGMP report or leave
messages received by the interface will be checked to determine whether its source IP is in the same network as the
interface. If the check failed for a received report or leave message, the message won't be processed by IGMP
protocol. If the check is disabled, the IGMP report or leave message with any source IP will be processed by the IGMP
protocol.
To view the following window, click L3 Features > IP Multicast Routing Protocol > IGMP > IGMP Check
Subscriber Source Network Settings, as shown below:
The fields that can be configured are described below:
DES-3810 Series Layer 3 Managed Ethernet Switch Web UI Reference Guide
Figure 6-54 IGMP Interface Settings – Edit window
Description
Use the drop-down menu to select the IGMP version that will be used to interpret IGMP
queries on the interface.
Use the drop-down menu to enables or disables IGMP for the IP interface. The default is
Disabled.
Enter a value between 1 and 31744 seconds, with a default of 125 seconds. This
specifies the length of time between sending IGMP queries.
Enter a value between 1 and 25 to specify the maximum amount of time allowed before
sending an IGMP response report. The default time is 10 seconds.
A tuning variable to allow for subnetworks that are expected to lose a large number of
packets. A value between 1 and 7 can be entered, with larger values being specified for
subnetworks that are expected to lose larger numbers of packets. The default setting is 2.
Enter a value between 1 and 25 to specify the maximum amount of time between group-
specific query messages, including those sent in response to leave group messages. The
default is 1 second.
Figure 6-55 IGMP Check Subscriber Source Network Settings window
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